Nathan Thompson believes Pompey exploited Plymouth’s confidence issues to inflict a crushing defeat.
The Pilgrims suffered a 5-1 home defeat at the hands of Peterborough last Saturday.
Today fellow high-fliers Pompey claimed a comfortable 3-0 triumph to strengthen their own promotion challenge.
Ronan Curtis scored twice and created the other in a man-of-the-match display, with Jamal Lowe also netting.
And Thompson, who appeared as a substitute for the injured Anton Walkes, said the Blues sensed vulnerability.
The right-back said: ‘We set our stall out early, were dominant from the start.
‘You look at a Plymouth team coming off the back of a 5-1 defeat last weekend and confidence is saturated a little bit – you could see that as soon as we scored the second goal.
‘I thought dealt with the atmosphere and were cool and collected, it was a good performance.
‘They had a 10-minute period just before half-time when they got their tails up and we took off Hawks (Oli Hawkins) and it slowed the tempo of the game, so they got back into it.
‘That is why it was important to start the second half strongly – and I thought the boys did that.
‘It was a matter of then controlling it and taking our opportunities, which we did.’